baber/WOPTO huggingface dataset:
Patent DE-2520672-A1 (DE)
Title: Force measuring instrument of versatile construction - uses conical bending rod with attached strain gauges
Inventor: BROSA ERICH
IPC: G01L1/22
Filed: 1975-05-09
Abstract: An instrument for the measurement of force uses a round bending rod of conical profile. The cone angle is chosen to ensure even extension under load of strain gauges mounted on the rod. The gauges are arranged in pairs connected together or placed opposite each other in one or two bridge circuits. On the free (loaded) end of the rod may be one or more grooves or cuts. Variation of their number and relative distances enables the sensitivity of the device to be altered without changing the electrical circuit sensitivity. Sensitivity may also be varied by changing the diameter of an axial boring in the rod. The force to be measured may be applied via linkages.
Patent DE-2522717-A1 (DE)
Title: Focussing system for long focal length objective - has front and rear dioptric systems and two catoptric systems
Inventor: MACHIDA TAKESHI
IPC: G02B13/02
Filed: 1975-05-22
Abstract: The effective focal distance f (KI+RI+RII) of the front lens system and the effective focal distance f of the whole objective are in a relationship f(KI+RI+RII)=f/1,2. The front lens system comprises the front dioptric system and the first and second cat-optric systems. The relative distance between the rear dioptric system and the front lens system is changed. The cabodioptric objective consists of four optical components. In the sequence of the movement of the light, the components are: front dioptric system (KI), first catoptric system (RI), second catoptric system (RII) and rear dioptric system (KII). The dioptric systems may consist of an individual lens or a combination of lenses.
Patent DE-2523416-A1 (DE)
Title: Saw teeth hard crown attachment process - has fluid metal droplet attached to tooth and shaped by hammers on three sides
Inventor: ALBER RUDOLF
IPC: B23D65/00
Filed: 1975-05-27
Abstract: A fluid hard-metal droplet is produced and placed on a saw tooth. When the droplet is solidified, it is sharpened and blanced. The viscous- fluid droplet is performed and centered before sharpening and balanced by two simultaneous strokes against the two broad sides of the saw blade. A sumultaneous stroke on the brest side of the blade is used to held pre-form the fluid droplet. A unit comprising two simultaneously operable cylinder/pistons (6, 8) is used, on to the piston connecting rods (16, 18) of which two shaping hammers (20, 22) are fitted. The hammers address opposing sides of the saw blade. A third cylinder/piston/ hammer unit (32, 34, 36) provides the breast-side blow.
Patent DE-2524741-A1 (DE)
Title: Rotary pump with helical housing or rotor - with seal strips having long resilient common sealing element in contact with housing wall
Inventor: KRAEMER HERMANN
IPC: F04C2/107
Filed: 1975-06-04
Abstract: The rotary pump is of the type having a housing (2) with helical inner contour or a rotor (3) with outer helical contour. The rotor is provided with a number of transversely slideable, mutually sealing, parallell seal strips (6) in sealing engagement with the housing. Rotation of the rotor relative to the housing causes an axial flow of the line fluid. In the region of the strip-to-housing seal a common flexible sealing element (25) is provided, extending axially over at least part of the length of the rotor and radially protruding from the ends of each of the strips. The element may have a circular cross-section and may be retained in corresponding recesses in each of the strips.
Patent DE-2525285-A1 (DE)
Title: Road manhole shaft annular concrete levelling ring - has centring circumferential castellations for interlocking end faces
Inventor: WEILER WALTER
IPC: E02D29/12
Filed: 1975-06-06
Abstract: The circular structural component (2) is for connection with a vertical manhole in a road, which is normally set in at the beginning of the road construction operations and is likely to need subsequent adjustment for height to match the level of the road. The component is fitted with projections on both end faces, for centring on the parts of the manhole shaft adjoining it above and below. These projections are interlocking castellations (4, 5) on the top and bottom edges. There may be complementary castellations (6, 7) on the bearing surface of the adjoining parts of the shaft, extending across the whole breadth. The circular component, usually of concrete, can be easily and promptly removed from the formwork, and mutually centring is easy when several are stacked on top of each other.
Patent DE-2531463-A1 (DE)
Title: Concrete wall form panels bracing connection - with paired coaxial tubes centering bolts and retractable bracing anchors
IPC: E04G17/04
Filed: 1975-07-15
Abstract: The connectors comprise pairs of mutually coaxial tube units (5a, 5b), with a centering bolt (6) fitting inside and a bracing anchor (7). One such tube is attached to the edge of each form panel, with tube axes parallel to the panel plane and vertical to the panel edge. The bolt and anchor are permanently retained in one tube, and led axially between two positions, in one of which a projecting bolt protrudes into the other tube. The anchor penetrates both tubes axially, and they are mutually braced by it. In the other position the anchor is fully retracted into its tube. There are no protruding connections media and no components can be lost.
Patent DE-2533067-A1 (DE)
Title: Weaving loom picker bar buffer - formed by set of spring washers made of elastomeric material and located in guide
Inventor: HAAG WALTER DR ING
IPC: D03D49/38
Filed: 1975-07-24
Abstract: Weaving loom picking bar buffer is composed of a s t of spring washers which is made of elastic synthetic plastics material and located in a guide. Lateral distortion of buffer is prevented and its shock absorbing effect maintained. Picker bar is mounted slidably in the cylindrical guide jointly with the sets of spring washers, whose peripheral faces are concave. Pref. picker bar may be provided with a spigot which is received in a bore of the uppermost spring washer.
Patent DE-2535751-A1 (DE)
Title: Hydrostatic steering for small vehicle - with integrated fluid reservoir and top up valves for leak independent operation
Inventor: LIEBERT KARL-HEINZ
IPC: F15B7/10
Filed: 1975-08-11
Abstract: The hydrostatic steering for the small vehicle, or boat, has a steering box with a fluid reservoir at the top and top up valves and the servo pump below. The output from the steering box has two lines coupled to the steering motor. To provide a leak independent operation of the system, with a self centering action, the two intake valves of the system, or top up valves, are mounted coaxially in the same housing, separated by a bulkhead. A pressure rod through the bulkhead has a length greater than the spacing of the two valve seats. This ensures that at least one valve is always open.
Patent DE-2536187-A1 (DE)
Title: Shock-absorbent seating for timepiece drive wheel pivot bearing - held by spring blade within mounting plate
Inventor: BACHMANN PETER
IPC: G04B31/02
Filed: 1975-08-13
Abstract: The seating is provided by a resilient lung (6) with a blind bore (10) into which the end (11) of the pivot pin (13) for the shaft (12) of the the rotating drive wheel fits. The lung (6) is located in a hole (2) through the mounting plate (1) for the timepiece mechanism, and the rounded head (8) of the lung (6) is engaged by one end of a spring blade (5), which is fixed by a screw (4) at its other end, to the mounting plate (1) and which holds the lung (6) in the hole (2). The shaft (7) of the lung (6) tapers inwards with its diameter at the top equal to the diameter of the hole (2).
Patent DE-2537439-A1 (DE)
Title: Wire bale tie - has end portions bent back on themselves to form a loop with free leg
Inventor: BAILEY BRIAN CHARLES
IPC: B65D63/12
Filed: 1975-08-22
Abstract: The wire tie for binding baled material, comprises a length or wire of which each end portion is bent back upon itself to form a loop with a free leg which extends substantially in the direction of the portion of the wire adjacent the loop so that the two loops at opposite ends can be interengaged by movement transversely of the length of wire and formed, after they are interengaged, into a knot of predetermined strength by pulling the loops endwise of the wire, in opposite directions relative to each other under predetermined tensioning forces applied to the loops by the wire endwise of the wire.
Patent DE-2539311-A1 (DE)
Title: Electrostatic precipitator - with electrically charged mechanical filter surrounding precipitator assembly
Inventor: REED GEORGE A
IPC: B03C3/155
Filed: 1975-09-04
Abstract: Appts. for sepn. of dust from gas streams comprises an electrostatic pptn. in a housing also contg. a dielectric filter surrounding the pptr. and being charged by positioning a conductive screen between the filter and the outlet and applying a potential difference between the pptr. and the screen; the screen is pref. close to the filter and nearer to the filter than the spacing between the filter and the pptr. Several such untis may be included. Filtration efficiency is superior to that of electrostatic or mechanical filtration alone.
Patent DE-2541498-A1 (DE)
Title: Pivot mechanism for agricultural rotary plough - consists of valved container exchanging air between outside and cylinder-piston unit
Inventor: GASSNER JOHANN
IPC: A01B3/421
Filed: 1975-09-17
Abstract: The pivot-mechanism consists of a plough body (1) on which is mounted a chassis pivoting to two different operating positions on a pivot axle (2). A cylinder-piston unit (9) is fixed by means of a bearing (10) and bolt (11) to the plough body (1). The piston rods (8) are joined to the rotary drive-unit (31) of the pivot axle (2). The plough body (1) has a transverse beam (6) and, at the top, an upper link attachment (5). The transverse beam (6) acts as a container for liq, such as pressure-oil (15). Compressed air (20) is contained in the top of the container. The oil (15) is connected to the cylinder via a tube (18) and pipe (24). The pipe (25) forms a connection to the control-mechanism of the tractor's hydraulic system.
Patent DE-2545702-A1 (DE)
Title: Measuring distance of still or moving body from water surface - using scatter capacity of water surface for fast neutrons
Inventor: BAGGE ERICH PROF DR
IPC: G01S13/00
Filed: 1975-10-11
Abstract: The method is carried out with a fast neutron source, and a detector assembly for slow neutrons, to measure the distance of the aircraft carrying the neutron source from the water. The source emits fast neutrons, while the detector detects reflected neutrons which are braked by scattering. Pref. the neutron source is surrounded on the sides facing the water surface and detector assembly with an absorber for thermal neutrons which allows only fast neutrons to reach the water surface, while the thermal neutrons are kept away from the detector. The neutron source is pref. surrounded on the side remote from the water surface with an absorber for neutron and gamma rays to reduce risk of radiation to persons on this side.
Patent DE-2552537-A1 (DE)
Title: Self:commutated three:phase invertor - commutates auxiliary rectifiers using energy storage device connected to DC input by three sets of thyristors
Inventor: KAHLEN HANS DR ING
IPC: H02M7/515
Filed: 1975-11-22
Abstract: The self-commutating three phase inverter has a rectifier with main thyristors and reverse current diodes for each phase. An energy store is used for commutation of one or several other rectifiers. The energy store is connected through one set of thyristors to main thyristors allocated to an input DC terminal. It is connected through a second set of opposite polarity to the first to the main thyristors of the other input DC terminal. The energy store is connected by a further terminal through a third set of thyristors, or through capacitors to the DC terminals.
Patent DE-2555725-A1 (DE)
Title: Single row Raschel machine - has guide bars for yarns to allow an effect yarn to be bonded to basic fabric
Inventor: PICARD MANFRED
IPC: D04B23/00
Filed: 1975-12-11
Abstract: A process and appts. are claimed for mfg. knit goods, using a Raschel machine with a single needle row, partic. curtaining fabrics. At least one guide bar is provided for an effect yarn and at least one guide bar is there for the bonding yarn located in front of the guide bar for the basic yarn. The latch needle is in the forward position during the knitting cycle in front of the guide bar for the bonding yarn. The process extends the applications of the Raschel machine by allowing an effect yarn to be bonded to the basic fabric structure.
Patent DE-2559113-A1 (DE)
Title: HV insulation tester for containers - is used on buried tanks and uses external metal screen as outer electrode of detector
Inventor: BARTH ERICH
IPC: G01M3/40
Filed: 1975-12-30
Abstract: The insulation testing system for liquid containers, esp. buried fuel tanks provides a means of testing the protective outer insulation layer during installation and at regular intervals thereafter. The outer, bitumen-base, insulation (4) is enclosed in a mantle (5) formed from metal sheet, foil or wire mesh. The upper edges of the metallisation are turned over (6) to prevent damage to the insulation during assembly. The metal cladding is held in place by steel straps which encircle the container. After fitting, the cladding is given a protective coating of plastics-type material (7). The earth-return terminal (9) of a high-voltage A.C. test transformer is connected to the metal body of the tank via one of the unions (2). The second terminal (10) is connected to the metal screen. Insulation breakdown is detected through the appearance of electrical arcing when the high voltage is applied.
Patent DE-2604546-A1 (DE)
Title: Digital FM waves demodulator - has two complementary transistors coupled for low current consumption and low output impedance
Inventor: SAX HERBERT
IPC: H03D3/14
Filed: 1976-02-06
Abstract: The digital demodulator consists of two complementary input transistors (T1, T2) coupled emitter to emitter and base to base and used to increase the input impedence. The emitter output is coupled to the demodulator itself which consists of two complementary transistors (T3, T4) coupled collector to collector. A voltage divider (R1, R2) is connected between the positive supply pole and the second transistor's base and its tapping is coupled to the base of the first transistor. The output is taken from the collectors and passed over an RC filter. The demodulator has a low output impedance and very low current consumption.
Patent DE-2609274-A1 (DE)
Title: Compacting sand into mould or core boxes - in which partial vacuum is applied via holes in pattern plate to aid compaction
Inventor: BUEHLER EUGEN DIPL ING
IPC: B22C15/23
Filed: 1976-03-05
Abstract: The sand is shot into mould or core boxes in which a large drop in air pressure has been achieved at very high speed; and subsequent compaction occurs using a partial vacuum of 0.3-0.7 technical atmos., which is held constant for, or drops by max. 25% during, min. 0.3 seconds. One vacuum appts. can be used to apply vacuum during shooting and subsequent compaction, or separate vacuum appts. may be employed for each step. The high speed application of vacuum is pref. achieved using a large reservoir or, alternatively, a piston moving in a cylinder, esp. a piston actuated by the moulding machine or press. A shutter is pref. used to close the mould or core box after shooting, i.e. to maintain the vacuum; and air inlet holes are pref. provided in the sand chamber.
Patent DE-2613339-A1 (DE)
Title: Polymerisable and or hardenable prods - obtd. from phenols, amines and formaldehyde in specific ratios
Inventor: SCHREIBER HERBERT
IPC: C08G14/06
Filed: 1976-03-29
Abstract: Method for prodn. of polymerisable and/or hardenable prods. according to DT 2323936, by reaction of phenols, amines and formaldehyde, the phenols having >=20 OH-substd. aromatic ring systems per molecule or the amines >=2 NH2 gps. per molecule, the ratio of amine to phenol reacted being 0.25 to 1.6, pref. 0.25 to 1.1. Mols. NH2 gps. per mol. phenolic OH gps. and the amt of HCHO reacted lying within a defined area of a 2 dimensional graphic representation whose abscissae corresp. to the ratio Mol. HCHO/Mol phenolic OH and whose ordinate. corresp. to the ratio Mols NH2 gps/Mols phenolic OH gps. The prods. can be used to form aqs. dispersions, for use as adhesives, surface coating agents, additives for rubber and for prodn. of prepegs or moulding powders.
Patent DE-2616642-A1 (DE)
Title: Control system for printing head of electronic calculating machine - has heated resistance segments receiving coded signal for print out on sensitive paper
Inventor: KIKUCHI TADAO
IPC: G06K15/10
Filed: 1976-04-15
Abstract: Control system for the printing head in an electronic calculator. The thermal display system has a number of printing heads which are geometrically arranged to print a number of n digits. Each printing head has resistance elements or segments which are suitable to produce a combination of each digit between 0 and 9. The appropriate resistance segments are heated to print out the chosen figure on sensitive paper. The system incorporates a segment decoder for placing an electrical signal onto selected segments of the printing head which correspond to the numberic data. The digital indication circuit produces digital signals for the significant digits of the numerical data in the order of the lowest to the highest digit. There is a zero suppression circuit which detects the digits which are zero above the significant digits of the numerical data.
Patent DE-2617818-A1 (DE)
Title: Welding tubes to tube plates - using disposable support ring to protect lining in bore of tube from weld metal.
Inventor: MAREK ADOLF ING
IPC: B23K9/028
Filed: 1976-04-23
Abstract: Process for welding tubes into tube plates, the novelty being that during welding, the seam is shielded from the bore of the tube by a metal support ring located in the tube outside the zone of the weld and pref. 5mm. below the end of the tube mating with the tube plate; and after welding, the support ring is at least partly bored out. Boring out pref. occurs in two stages, (a) removing the inner portion of the support ring; and (b) removing the outer part of the support ring in contact with the bore of the tube. The support ring pref. consists of a short length of outer tube tack welded to a concentric, longer inner tube leaving an annular gap. Used e.g. in the welding of composite tubes in a tube plate for mfg. cracked gas coolers. The bore of the tube is protected from weld spray.
Patent DE-2619582-A1 (DE)
Title: Hydraulic system with impulse generator - has variable volume chamber connected through valve system to two cylinder units with coupled piston rods
Inventor: GRENDA FRIEDRICH
IPC: F03G7/10
Filed: 1976-05-04
Abstract: The hydraulic pressure generator has an impulse generator as a drive unit, for machines of any type. the operating pressures in the system are automatically produced and controlled, without circulation of the fluid within the system. During working stroke of the impulse generator, only a change in shape takes place, but not in volume. The generator has two cylinders whose piston rods are connected by an asymmetrically pivoted link, a valve system linking both cylinders with a fluid reservoir and the impulse generator. The latter has a base section slidable in a guide, and pivoted side wall sections.
Patent DE-2623442-A1 (DE)
Title: Pneumatic handling device for plastics foil - has small openings in cylinder for blowing compressed air under handled foil
Inventor: RHEINDT KURT DIPL ING
IPC: B65H23/24
Filed: 1976-05-25
Abstract: Handling device for foil or welding bands consists of cylinder or a semi-cylinder from metal or plastic or wood with smooth surface. The outer surface of the cylinder which faces the foil or the welding band is provided with small openings through which a compressed air is blown under the foil or the welding band. The compressed air forms a cushion between the foil or the welding band and the cylinder along which the foil or the welding band is gliding. Due to the air cushion the foil or the welding band is not damaged by friction and dust particles and it is also possible to handle a very thin foil or welding band. Useful in the mfr. of ring books or transparent plastics folders etc.
Patent DE-2630314-A1 (DE)
Title: Swimming pool ducting system sealing mechanism - has outlet sealing covers with relief pressure valve and vent
Inventor: PREUNINGER MANFRED ING GRAD
IPC: E04H4/12
Filed: 1976-07-06
Abstract: The device, for sealing off pressure from a ducting system, is used in a swimming-pool water circulation installation. The latter has a suction duct, with bottom outlet, leading to a filter plant, and further ducts between the latter and the pool intakes and/or outlets. The bottom outlet (2) and these further intakes or outlets (3, 4) have covers for pressure-tight closure from the outside atmosphere. The bottom outlet cover (21) is fitted with a connecting socket for a water pressure pump (9), while there is open passage from bottom outlet duct (20) to suction duct (7). One cover, at least, has a relief pressure valve. At the highest point there is a venting aperture.
Patent DE-2630365-A1 (DE)
Title: Multichannel waveguide made using double crucible - where several glass optical fibres are drawn and embedded in glass sheath
Inventor: GRABMAIER JOSEF DIPL PHYS DR R
IPC: C03B37/023
Filed: 1976-07-06
Abstract: A multichannel optical waveguide is made, where several fibres are embedded in a single sheath. An outer crucible (1) surrounds an inner crucible (2) which contains outlet nozzles in its base matching the number of optical fibres required; the fibres flow downwards from crucible (2) through at least one nozzle in the base of crucible (1), so the material flowing from crucible (1) forms a sheath round the fibres; and the assembly is drawn out of the double crucible (1,2). Two types (1,2) of glass are pref. melted simultaneously in the crucibles while the nozzles are closed by a single plug; the melts are then cooled to the drawing temp., and the plug is removed for drawing the multichannel waveguide. The pref. appts. includes a double crucible made of Pt; Ir; or Pt-Rh, surrounded by a heater coil. Arrangement avoids the prodn. difficulties involved with conventional methods; and waveguides of high quality suitable for optical communication over long distances are obtd.
Patent DE-2632719-A1 (DE)
Title: Flanged spool for recording tape or cine film - has slotted clamping bush to locate end of inserted strip
Inventor: WECKEND WOLFGANG
IPC: G11B15/67
Filed: 1976-07-21
Abstract: A flanged spool (1) for the location of the end of strip material (9) has an axial slot for the insertion of the strip. One end of the spool is counterbored (6) for the location of a clamping bush. The bush is held in position by a central shoulder screw which provides a rotary location. The clmping bush which overlaps the spool slot (4) has a slot which engages a corner of the inserted strip (9). By rotating the bush slightly, the profiled counter bore (6b) compresses the slot and thus clamps the strip corner.
Patent DE-2634753-A1 (DE)
Title: Large divided window reinforced hollow plastic profiles connection - has plug members uniting metal cores in force transfer lock
Inventor: DUERRSCHNABEL KARL
IPC: E06B1/32
Filed: 1976-08-02
Abstract: The structure is for a large window area surrounded by a blind frame and divided into fields by horizontal and/or vertical crossbars. It is used in offices, workshops, workshops, gymnasiums, swimming baths etc. Components are hollow plastic profiles with a reinforcing metal core. At their points of contact these components (1) are joined by one or more plug members (19) which bring the metal core pieces (18) together in a force-transfer locking action. This can be in the form of a through-bolt with front, centre and rear parts in three structural elements. A homogenous stiffening system is produced, and the structure is easily assembled and widely variable.